Bandage-winding machine



L. G.. NELSON.

BANDAGE WINDING MACHINE.

APPLICATION FILED MAY 13. 1920..

Patented Jan. 11, 1921.

3 SHEETS-SHEEI l.

. Elwwwtoz -L. G. NELSON. BANDAG-E WINDING MACHINE.

1,365,535. Patented-Jan. 11,1921.

3 SHEETS SHEEI 2.

LEONARD G. NELSON, 0F MAPLETON, MINNESOTA.

BANDAGE-WINDING- MACHINE.

Specification of Letters Patent.

Patented Jan. 11, 1921.

Application filed May 13, 1920. Serial No. 381,155.

To all whom it may concern:

Be it known that I, LEONARD G. NnLsoN, a citizen of the United States, residing at Mapleton, in the county of Blue Earth and State of Minnesota, have invented certain new and useful Improvements in Bandage- Winding Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved bandage winding machine for use in winding strips of bandage into rolls so that it can be conveniently used and one object of the invention is to provide a bandage winding machine so constructed that the strip of bandage gauze maybe guided in its move: ment to the winding shaft and to further so construct the machine that the strip of bandage gauze maybe kept fiat and held tight by a roller which will constitute a weight.

Another object of the invention is to so construct this machine, that one of the rollers over which the strip of gauze passes may retain the strip in spaced relation to a table forming hand rest and a second roller positioned in front of the table serve as means for properly centering the strip of gauze as it passes over the table, the second roller rotating in an opposite direction to the travel of the strip of gauze.

Another object of the invention is to so construct this machine that the shaft upon which the bandage is rolled may be driven from a driving wheel which will be'turned with one hand while the second is used for engaging and guiding the strip of bandage 'auze. D Another object of the invention is to so construct the machine that the smoothing roller may be carried by a bracket pivotally connected with the frame'of the machine and provided with a clutch section which will be engaged bythe clutch section carrledby the driving element.

Another object of the invention is to provide an improved actuating means for the clutch of the driving elementwhich willinclude a lever extending adjacent the'turning handle of the driving wheel and thus permit the clutch to be moved into an operative position for raising the smoothing roller taken along the line 33 of Fig. 1.

Fig. 4 is a longitudinal sectional view taken along the line l.t of Fig. 1.

Fig. 5 is a fragmentary view showing the clutch operating mechanism, the-view being partially in top plan and partially in sec tion."

This machineis provided with a frame having a forward section A and a rear section B which is offset with respect to the forward section thus positioning the rear section to one side of the forward section as shown in Fig. 1. This frame is provided with longitudinally extending side bars 1, 2 and S which extend parallel to each other and are connected with the baseboard 4 by bolts or other similar fasteners as shown. It should be noted, however, that the. rear portions of the bars 1 and 2 are supported upon standards 5 so that the rear end portion of the rear section B will be held in an elevated position. It will be further noted that the forward section A of this frame is provided with bracing webs 6 as shown in Fig. 1 so that the side bars will be held against movement away from each other. These webs can be stamped from the metal blank along with the side bars or may berformedseparate if desired and suitably connected with the side bars. g

The drivenshaft 7 is rotatably mounted to extend transversely adjacent the forward end of the forward section and is extended to provide a spindle 8 upon which the strip thus permitting the roll of bandage to be easily removed from the spindle. A driving wheel 9 which is provided with a hub extension 10 is rotatably connected with the frame adjacent the rear end of the forward section and a sprocket chain 11 engages this driving sprocket 9 and a smaller sprocket 12 carried by the driving shaft 7 so that the driving shaft may be rapidly r0- tated when the sprocket 9 is turned by means of the turning handle 13.

The rear section B carries guide rollers 14 and 15 which are rotatably mounted and extend transversely of the frame with the roller 15 positioned in front of the hand support or table 16 and the roller 14 positioned to the rear of the table 16. The roller 14 tapers from its ends toward its center in order to properly center the strip of bandage gauze and the roller 15 tapers from its center toward its ends so that the central portion of this roller 15 will be thicker than the end portions and thus the strip of bandage gauze held in an elevated position with respect to the table and permit it to be easily engaged by the left hand of the operator. The roller 15 is rotated by the frictional engagement of the bandage gauze with the roller but the roller 14 is positively driven and is rotated in the direction of the arrow in Fig. 1 so that it rotates in an opposite direction to the travel of the strip of gauze and thus will act very efficiently in centering the gauze passing over the table. In order to rotate this roller 14 there has been provided a belt 17 which engages a pulley wheel 18 mounted upon the shaft of the roller 14. This belt 17 passes over guide rollers or pulley ,wheels 19 mounted upon the frame and also passes about a large pulley wheel 20 mounted upon the spindle 8 against the inner end of the spindle. It will thus be seen that the roller 14 will be driven from the driven shaft 7 when this shaft is rotated for winding the bandage. This belt 17 should be kept tight and in order to do so there has been provided a belt tightener consisting of a rocker shaft 21 which is mounted in bearings 22 and is provided with arms 23 and 24. The arm 23 has its end portion bent to provide a stub shaft 25 carrying a belt engaging roller 26 and the arm 24 is extended parallel to the shaft 21 and then bent to provide a lever arm 27 which carries a weight 28 releasably held in a set position by the set screw 29. It will thus be seen that by shifting the position of the weight the desired pressure can be applied to the belt 17 and thus the belt kept at the proper tightness.

V In addition to the rollers 14 and 15 the rear section B of the frame carries a smoothing roller 30 against which the strip of bandage gauze 31 will be held by the cooperating smoothing roller 32 which is rotatably mounted between the side arms 33 carried by the bracket 34. This bracket 34 extends transversely of the frame and in the form disclosed is formed of two strips which have their free end port-ions bent to provide arms 35 and 36 mounted upon a shaft 37 which is journaled in the bearing sleeve 38. This shaft 37 is provided at one end with a cup 39 which forms one section of a clutch and receives a clutch head or second clutch section 40 carried by a shaft 41 rotatably and slidably mounted in a bearing 42. This shaft 41 is provided with a squared end portion upon which the driving spindle 9 is mounted and it will thus be seen that when the spindle 9 is rotated the shaft 41 will rotate with it.

A spring 43 is mounted in the clutch cup 39 and engages the clutch head 40 so that this clutch head will be normally held out of engagement with the cup and the sprocket permitted to rotate without the shaft 37 rotating with it. A lever 44 is pivotally connected with the sprocket wheel 9 adjacent the handle 13 and hasits inner end portion bent to provide an abutment finger for engaging the outer end of the shaft 41 and moving this shaft longitudinally against the action of the spring 43 to bring the clutch head into operative engagement with the clutch cup. It will thus be seen that when it is desired to bring the bracket 34 to raise the smoothing roller 32 it is simply necessary to grasp the lever 44 with the thumb and move this lever to apply pressure to the shaft 41 and thus bring the two clutch elements into engagement. When in engagement the bracket will be swung upwardly thus permitting the strip of bandage gauze to be very easily passed between the two rollers and drawn forwardly and finally wrapped around the spindle. After the gauze has been started upon the spindle the sprocket wheel will be turned back to bring the smoothing roller into engagement with the bandage and the lever 44 released thus permitting the spring 43 to expand and move the clutch element out of engagement. The sprocket will now be turned and rotary movement will be transmitted to the driving shaft 7, to rotate the spindle and wind the bandage gauze upon the spindle. At the same time rotary movement will be transmitted to the roller 14 by the belt 17 and the strip of gauze will be centered upon the table. It will thus be seen that this machine is so constructed that it will be very con venient to use and, further, so constructed that the bandage can be very rapidly wound witha minimum amount of labor.

What is claimed is:

1. A bandage winder comprising a main frame, a rotatably mounted winding shaft, a driving element for the winding shaft, a bandage smoothing element mounted for movement into and out of operative position, and means for releasably connecting the smoothing element with the driving element whereby the smoothing element may be moved to an operative or inoperative position through the medium of the driving element.

2. A bandage winder comprising a main frame, a winding element at one end of the main frame, a smoothing element carried by the'main frame, a driving element for the winding element carried by the main frame, an auxiliary frame movably carried by the main frame, a smoothing element carried by the auxiliary frame and cooperating with the smoothing element of the main frame, and means for connecting the auxiliary frame with the driving element for moving the auxiliary frame to bring the smoothing element thereof into and out of operative relation with the smoothing element of the main frame.

3. A bandage winder comprising a main frame having its forward portion offset with respect to its rear portion, a movably mounted auxiliary frame, a winding element carried by the forward portion of the main frame, a smoothing element carried by the auxiliary frame for engaging a bandage passing over the rear portion of the main frame, a driving element for the winding element carried by the forward portion of the main frame, and a clutch element for re leasably connecting the driving element with the auxiliary frame to swing the auxiliary frame and move the smoothing element thereof into and out of an operative position.

4. A bandage winder comprising a main frame, a winding element rotatably carried by the main frame, a driving element for the winding element rotatably carried by the main frame, a clutch element having a shaft extending through the hub of the driving element, an auxiliary frame pivotally connected with the main frame and having a clutch element for engagement by the first mentioned clutch element, a smoothing element carried by the auxiliary frame, and means for moving the first clutch element into engagement with the clutch element of the auxiliary frame to swing the auxiliary frame and bring its smoothing element into and out of operating position.

5. A bandage winder comprising a frame, a winding element carried by the frame, and a guide element for the bandage passing to the winding element, the guiding element being rotatably mounted and rotating in an opposite direction to the travel of the bandage.

6. A bandage winder comprising a frame, a winding element carried by the frame, a smoothing element carried by the frame and a guiding roller carried by the frame, the guiding roller tapering inwardly from its ends and rotating in an opposite direction to the rotation of the winding element.

7. A bandage winder comprising a frame having its forward section offset with respect to its rear section, a driven shaft rotatably carried by the forward end of the forward sections and extending in front of the rear section to provide a roll receiving spindle, a driving element for the driven shaft including a rotatable shaft having a clutch element carried thereby, a bracket pivotally connected with the rear portion of the forward section and having a clutch element for engagement by the clutch element of the driving element, the bracket extending across the forward end of the rear section of the frame, a smoothing element carried by the bracket for engaging a strip of bandage moving longitudinally of the rear section of the frame, and means carried by the frame to the rear of the smoothing means for guiding the bandage strip.

8. A bandage winder comprising a frame, a winding element carried by the frame, a smoothing element carried by the frame for smoothing and stretching a strip of bandage passing to the winding element, and guiding rollers carried by the frame for guiding the passage of the strip of bandage across the frame to the smoothing element, one of the guiding rollers rotating in an opposite direction to the movement of the strip of bandage.

In testimony whereof I have hereunto set my hand.

LEONARD Gr. NELSON. 

